Answer
The cerebrum.
The graymatter of the comprises comprises nerve cell bodies( neurosomas), dendrites, and synapses. The white matter is mainly myelinated axons/fibers. The superficial cerebral cortex is the major part of the cerebral gray matter ; it may have as many as six layers of cells. Cell types are small pyramidal cells , large pyramidal cells and stellate cells. The cortex is displayed as frontal lobes, parietal lobes, temporal lobes, occipital lobes. The insula ( insular lobes) is also part of cerebral gray matter; it is located deep to the lateral sulcus.
The basal nuclei --caudate , putamen, and globus pallidus-- also form part of the gray matter of the cerebrum. Nuclei are groupings of neurons in the central nervous system CNS. In the peripheral nervous system such clusters are called ganglia.
The white matter of the cerebrum is deep to the cerebral cortex and consists of myelinated fibers. Bundles of these fibers form tracts (called nerves in the PNS) which provide connections between different parts of the brain. Projection fibers provide vertical connections between superior and inferior parts of the brain; commissural fibers provide connection between parts of the cerebrum in opposite hemispheres. and association fibers supply connections within the same hemisphere.
Work Step by Step
The Cerebellum is the largest part of the hindbrain. It consists of right and left hemispheres with the vermis between. The superficial cortex which is folded and branched is gray matter. There are special cells in the cerebellar cortex called granule cells and Purkinje ( branched) cells ).There are also nuclei of gray matter embedded in the deep white matter. These are the emboliform, the globose, the dentate and the fastigial nuclei. Three thick bundles of fiber tracts constitute the cerebellar white matter. These are inferior, middle and superior peduncles.. The inferior peduncles connect the cerebellum with the medulla oblongata; the middle peduncles connect the cerebellum with the pons, and the midbrain is connected to the cerebellum by the superior peduncles.
